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Finding the Fourth Proportional to 228,211.40, 342,317.10 and 101,851.40

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Solution

The fourth proportional to 228,211.40, 342,317.10 and 101,851.40 is: 152,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,211.40 : 342,317.10 = 101,851.40 : x
  2. Step 2: Convert to fraction form
    228,211.40/342,317.10 = 101,851.40/x
  3. Step 3: Cross multiply
    228,211.40x = 342,317.10 × 101,851.40
  4. Step 4: Simplify right side
    228,211.40x = 34,865,475,878.94
  5. Step 5: Solve for x
    x = 34,865,475,878.94/228,211.40
  6. Step 6: Final answer
    x = 152,777.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.